Home / 992,040.08-1,369,691.40-665,842.24

Finding the Fourth Proportional to 992,040.08, 1,369,691.40 and 665,842.24

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Solution

The fourth proportional to 992,040.08, 1,369,691.40 and 665,842.24 is: 919,316.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,040.08 : 1,369,691.40 = 665,842.24 : x
  2. Step 2: Convert to fraction form
    992,040.08/1,369,691.40 = 665,842.24/x
  3. Step 3: Cross multiply
    992,040.08x = 1,369,691.40 × 665,842.24
  4. Step 4: Simplify right side
    992,040.08x = 911,998,389,884.74
  5. Step 5: Solve for x
    x = 911,998,389,884.74/992,040.08
  6. Step 6: Final answer
    x = 919,316.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.